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{| class="wikitable" style="width:100%; border-style: solid; border-width: 2px; border-color:teal"
|colspan="1" style = "font-size:130%; color:black; background: FFFAFA"|<span style="color:black>'''RDT Quiz A Q2'''</span>
|colspan="1" style = "font-size:130%; color:black; background: FFFAFA"|<span style="color:black>'''RDT Quiz A Q2'''</span>
</br><span style="font-size:90%">Shown below is an RDT test. This uses a pan-malarial antibody (labelled Pan) and a ''P.falciparum'' species-specific antibody (labelled Sp). The test has been used to assess a patient and the positive bands are shown on the figure.</span>
</br><span style="font-size:90%">During the trophozoite stage of parasite growth there are many changes to both parasite and the red cell it is contained in. All species dorm malarial pigment (haemozoin) as they develop as it is essential to their safe development.</span>
<gallery mode="nolines" widths="220px" heights="220px" >
<gallery mode="nolines" widths="220px" heights="220px" >
File:Pig1.jpg|link={{filepath:MPi1.jpg}}
File:Pig1.jpg|link={{filepath:MPi1.jpg}}
</gallery>
</gallery>
<quiz display=simple>
<quiz display=simple>
{<span style="font-size:90%">Which of the following interpretations can be made from this result? ('''select one or more options''')</span></br></br>
{<span style="font-size:90%">Which of the following are true of malarial pigment? ('''select one or more options''')</span></br></br>
|type="[]"}
|type="[]"}
- <span style="font-size:90%">Single species: ''P.falciparum''
- <span style="font-size:90%">Single species: ''P.falciparum''

Revision as of 15:27, 27 November 2024

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RDT Quiz A Q2


During the trophozoite stage of parasite growth there are many changes to both parasite and the red cell it is contained in. All species dorm malarial pigment (haemozoin) as they develop as it is essential to their safe development.

Which of the following are true of malarial pigment? (select one or more options)

Single species: P.falciparum
Single species non-P.falciparum
Two species including P.falciparum
Two species not including P.falciparum
P.falciparum with HRP2 deletion
This test cannot be reported


Explanation of correct answer (click "Expand")
'Short answer taken from section "Multi-line RDT Interpretation" (see the section for full details and links).

When no band appears in the control area (black arrow) the test is ALWAYS invalid:

Irrespective of whether any other bands are present, this is always an invalid test: do not interpret. Report as failed test
Action:

  • Repeat the test
  • Consider the reasons for test failure


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